Automotive Service Excellence (ASE) Brakes Certification 2025 – 400 Free Practice Questions to Pass the Exam

The primary components of a disc brake system include the brake rotor, brake caliper, brake pads, and brake lines.

The brake rotor, also known as the disc, is a circular metal piece that attaches to the wheel. It spins along with the wheel and provides a surface for the brake pads to squeeze against to create friction and slow the vehicle down.

The brake caliper is the assembly that houses the brake pads and contains the hydraulic pistons that push the pads against the rotor. This is essential for the braking process, as it translates hydraulic pressure into mechanical force that engages the pads.

The brake pads are the friction materials that press against the rotor when the brakes are applied, creating the necessary force to stop the vehicle.

Finally, the brake lines carry brake fluid from the master cylinder to the calipers, allowing for the hydraulic actuation of the braking system.

Together, these components work in harmony to effectively stop the vehicle by converting the driver's pedal input into braking force.